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Recently I was wondering what these two beautiful French instruments are used for. At first I thought they were used to make threads on the lathe. Browsing through an online store, I found this out by accident. They are files for repairing threads on screws. As you can see on the side markings...

It was not without the use of a hammer to bring it to a reasonably good condition. Of course, first it was necessary to make the material ductile so that it would not be damaged. Next was the application of copper using the 19th century electroplating method. Grinding to make it even for the...

With the encouragement of my colleagues, I took it upon myself to complete the project of being able to repair the scrap😉. Unfortunately, I do not have preliminary photos. Instead, I can show another scrap. This rail was in deplorable condition. It had been chewed up by the time it lay in the...

The belt was in deplorable condition. I had to soften the leather so that further repairs could be made. Repairing the edges of the belt with a special ointment according to a recipe from the 19th century. After painting the top side with elastic varnish according to a recipe from the 19th...

Here is an example of repairing the front cover from scratch. The result of the repair came out quite well. What do colleagues think?

I bought the wappen on ebay. I thought that there would not be much work with it. It turned out that it was soft-soldered (tin with lead), and it still turned out to be pulled out of the ground and trampled. I had to let go so that the material became malleable. I started the repair by properly...

They have been cast and cut. They are different from the usual ones from other lands. With a thread of 18 coils per inch. With a diameter of 3.62 mm. I had to make them up, unfortunately. The effect is satisfactory. I will leave the evaluation to my fellow professionals.

As you can see, the end of the fireplace is damaged. It had to be rebuilt. In accordance with the original. With hard soldering of the rebuilt parts and sanding of the solders. Repair time about four evenings. The result came out quite positively. You can judge the end result for yourself.

Methods of protecting copper or brass have been known in Europe since the 12th century. Lacquers were made from natural resins such as shellac in various shades. Colouring agents such as lead chromate were added to them. The general recipe from the early 20th century for a small colour coating...